At times, when importing/exporting users to/from uKnowva, the browsers die. This does not mean that your operation was not completed, it is just that since the browser or connection dies, you did not receive an update.

In such cases, you should check the logs files available in the Logs Folder....which is usually in

[[logs folderpath]]/userimportlogs/

There you can find details of the import/export operations.